
/* Derived from the LibTomCrypt library (authored by Tom St Denis)  */

#include <stdio.h>
#include <memory.h>

#include "ltc_omac.h"

static const struct
{
    int keylen, msglen;
    unsigned char key[16], msg[64], tag[16];
}
tests[] =
{
    {
        16, 0,
        {
            0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 
            0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
        },
        {
            0x00
        },
        {
            0xbb, 0x1d, 0x69, 0x29, 0xe9, 0x59, 0x37, 0x28, 
            0x7f, 0xa3, 0x7d, 0x12, 0x9b, 0x75, 0x67, 0x46
        }
    },
    {
        16, 16,
        {
            0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 
            0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
        },
        {
            0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 
            0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a
        },
        {
            0x07, 0x0a, 0x16, 0xb4, 0x6b, 0x4d, 0x41, 0x44, 
            0xf7, 0x9b, 0xdd, 0x9d, 0xd0, 0x4a, 0x28, 0x7c
        }
    },
    {
        16, 40,
        {
            0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 
            0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
        },
        {
            0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 
            0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, 
            0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 
            0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, 
            0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11
        },
        {
            0xdf, 0xa6, 0x67, 0x47, 0xde, 0x9a, 0xe6, 0x30, 
            0x30, 0xca, 0x32, 0x61, 0x14, 0x97, 0xc8, 0x27
        }
    },
    {
        16, 64,
        {
            0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 
            0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
        },
        {
            0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 
            0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, 
            0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 
            0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, 
            0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 
            0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef, 
            0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 
            0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
        },
        {
            0x51, 0xf0, 0xbe, 0xbf, 0x7e, 0x3b, 0x9d, 0x92, 
            0xfc, 0x49, 0x74, 0x17, 0x79, 0x36, 0x3c, 0xfe
        }
    }
};

int omac_test( void )
{
    unsigned char out[16];
    int x;
    unsigned long len;

    for( x = 0; x < ( int ) (sizeof(tests) / sizeof(tests[0])); x++ )
    {
        len = sizeof( out );
        omac_memory( tests[x].key, tests[x].keylen, tests[x].msg, tests[x].msglen, out, &len );
        if( memcmp( out, tests[x].tag, 16 ) != 0 )
        {
#if 1
            int y;
            printf( "\n\nTag: " );
            for( y = 0; y < 16; y++ )
                printf( "%02x", out[y] );
            printf( "\n\n" );
#endif
            return -1;
        }
    }

    return 0;
}

int main( void )
{
    omac_test();
}
